Learn from your data and other channel data what kinds of thumbnails and titles work, and have a safe way to see how changing your titles and thumbnails will affect your click-through rate. Several big channels are already using it before uploading to take their thumbnail and titles, and optimize them to get the highest Estimated CTR% possible, before uploading to YouTube. Supply your video's title, thumbnail, duration, and YouTube channel to instantly receive an estimated Click-Through Rate percent (CTR). This tool uses a machine learning model trained on over 28-day CTR data snapshots from over 1000 different videos, titles, and thumbnail combinations. Using that information, the model detects patterns in the thumbnails and titles that correlate well with high click-through rates.